EP 1274208 A4 20091202 - COMMUNICATION DEVICE AND TRANSMISSION MODE SELECTING METHOD
Title (en)
COMMUNICATION DEVICE AND TRANSMISSION MODE SELECTING METHOD
Title (de)
VERFAHREN ZUM AUSWÄHLEN EINER VERMITTLUNGSEINRICHTUNG UND EINES ÜBERTRAGUNGSMODUS
Title (fr)
DISPOSITIF DE COMMUNICATION ET PROCEDE DE SELECTION DE MODE DE TRANSMISSION
Publication
Application
Priority
- JP 0201519 W 20020221
- JP 2001051622 A 20010227
Abstract (en)
[origin: EP1274208A1] Channel quality estimating section 104 estimates the channel quality from the reception signal quality and outputs the result to transmission method determining section 105 and control signal dividing section 108. Transmission method determining section 105 determines a transmission method of a signal transmitted to communication partner from channel conditions and outputs the result to switch 106, switch 107 and control signal dividing section 108. Control signal dividing section 108 divides the transmission method information into high-speed control signal which is transmitted periodically and low-speed control signal which is transmitted on demand rather than periodically. Moreover, control signal dividing section 108 determines the combinations of low-speed control signal and high-speed control signal outputted from a tendency of communication quality, and outputs the result to modulator 114. Modulator 114 modulates the high-speed control signal and low-speed control signal, and outputs the result to multiplexer 115. <IMAGE>
IPC 8 full level
H04L 1/00 (2006.01); H04L 27/18 (2006.01); H04B 7/26 (2006.01); H04L 27/00 (2006.01); H04L 27/34 (2006.01); H04L 27/38 (2006.01)
CPC (source: EP KR US)
H04B 7/005 (2013.01 - KR); H04L 1/0003 (2013.01 - EP US); H04L 1/0025 (2013.01 - EP US); H04L 1/0026 (2013.01 - EP US); H04L 1/0027 (2013.01 - EP US); H04L 1/0029 (2013.01 - EP US); H04L 27/0008 (2013.01 - EP US); H04L 27/0012 (2013.01 - EP US); Y02D 30/50 (2020.08 - EP US)
Citation (search report)
- [A] EP 0944200 A2 19990922 - FUJITSU LTD [JP]
- [A] WO 0041318 A1 20000713 - UNIV SOUTHAMPTON [GB], et al
- [A] US 5577087 A 19961119 - FURUYA YUKITSUNA [JP]
- See references of WO 02069591A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1274208 A1 20030108; EP 1274208 A4 20091202; EP 1274208 B1 20120104; CN 1198430 C 20050420; CN 1457583 A 20031119; JP 2002261851 A 20020913; JP 3589992 B2 20041117; KR 20020093964 A 20021216; US 2003053549 A1 20030320; US 6965639 B2 20051115; WO 02069591 A1 20020906
DOCDB simple family (application)
EP 02700655 A 20020221; CN 02800458 A 20020221; JP 0201519 W 20020221; JP 2001051622 A 20010227; KR 20027014432 A 20021026; US 23992302 A 20020927